Table 4

Logistic regression of association between noticing cigarettes displayed and susceptibility, and survey stage, controlling for smoking-related and demographic variables

Never-smokers noticing openly displayed at point of sale
1=notice (n=1693), 0=not (n=1225)
Never-smokers’ susceptibility to smoke
1=susceptible (n=673), 0=not (n=2239)
nAOR*95% CI
Lower
95% CI
Upper
P valuenAOR*95% CI
Lower
95% CI
Upper
P value
Survey stage<0.001<0.001
 Preban (2011)10012.131.732.63<0.0011 0011.311.061.620.014
 Mid-ban (2014)937Ref931Ref
 Postban (2016)9800.200.160.24<0.0019800.790.630.990.040
Any close friends smoke
 No2181Ref2176Ref
 Yes7371.391.131.720.0027362.211.812.71<0.001
Any siblings smoke0.532<0.001
 No/No siblings2425Ref2424Ref
 Yes3811.150.891.490.2743801.621.262.07<0.001
 Not sure/not stated1121.080.701.680.7211082.181.433.31<0.001
Parents smoke0.017<0.001
 Neither smokes1641Ref1641Ref
 Either9441.321.081.600.0059421.311.071.600.010
 Not sure/not stated3331.220.921.600.1673291.721.302.28<0.001
Gender
 Male1484Ref1483Ref
 Female14340.860.731.020.08414290.840.701.010.058
Age0.2070.002
 11
673Ref672Ref
 12 vs 11 5431.110.861.440.4185411.060.791.420.704
 13 vs 11–12 5281.210.961.540.1115281.421.111.810.006
 14 vs 11–13 5061.090.871.38.0.4465041.140.901.450.284
 15 vs 11–14 3931.160.901.490.2393931.050.811.360.723
 16 vs 11–15 2750.820.621.100.1952740.610.440.840.003
Social grade
 Middle class (ABC1)1257Ref1255Ref
 Working class (C2DE)16611.000.841.180.95516570.960.801.160.684
Model χ²=656.03, df=14, p<0.001.
Hosmer and Lemeshow χ²=11.742, df=8, p=0.163.
Cases correctly classified: 73%.
35 cases excluded due to missing data on one or more independent variables.
Model χ²=170.52, df=14, p<0.001.
Hosmer and Lemeshow χ²=4.471, df=8, p=0.812.
Cases correctly classified: 77%.
41 cases excluded due to missing data on one or more independent variables.
  • *Adjusted for all other variables in the model.

  • AOR, adjusted OR; ref, reference category.